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  1. Oxford Dictionary

    root hair

    • n.
      each of a large number of elongated microscopic outgrowths from the outer layer of cells in a root, absorbing moisture and nutrients from the soil.

    • noun: root hair, plural noun: root hairs

    • 更多解釋

    root hair

    • IPA[ˈro͞ot ˌher]
    • n.
      each of a large number of elongated microscopic outgrowths from the outer layer of cells in a ...

    Oxford American Dictionary